package com.c1g19.utils;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.List;

public class ConvertVideo {

	private final static String PATH = "f:\\迅雷下载\\123.mp4";

	public static void main(String[] args) {

		Runtime runtime = Runtime.getRuntime();
		Process proce = null;
		String cmd = "";
		String cut = "     f:\\迅雷下载\\ffmpeg.exe   -i   "
				+ PATH
				+ "   -y   -f   image2   -ss   8   -t   0.001   -s   600x500   f:\\迅雷下载\\"
				+ "a.jpg";
		String cutCmd = cmd + cut;
		try {
			proce = runtime.exec(cutCmd);
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		//    	
		// if (!checkfile(PATH)) {
		// System.out.println(PATH + " is not file");
		// return;
		// }
		// if (process()) {
		// System.out.println("ok");
		// }
	}

	/**
	 * 进行转换
	 * 
	 * @return 转换结果
	 */
	private static boolean process() {
		int type = checkContentType();
		boolean status = false;
		if (type == 0) {
			System.out.println("直接将文件转为flv文件");
			status = processFLV(PATH);// 直接将文件转为flv文件
		} else if (type == 1) {
			String avifilepath = processAVI(type);
			if (avifilepath == null)
				return false;// avi文件没有得到
			status = processFLV(avifilepath);// 将avi转为flv
		}
		return status;
	}

	/**
	 * 检查视频的格式
	 * 
	 * @return
	 */
	private static int checkContentType() {
		String type = PATH.substring(PATH.lastIndexOf(".") + 1, PATH.length())
				.toLowerCase();
		// ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等）
		if (type.equals("avi")) {
			return 0;
		} else if (type.equals("mpg")) {
			return 0;
		} else if (type.equals("wmv")) {
			return 0;
		} else if (type.equals("3gp")) {
			return 0;
		} else if (type.equals("mov")) {
			return 0;
		} else if (type.equals("mp4")) {
			return 0;
		} else if (type.equals("asf")) {
			return 0;
		} else if (type.equals("asx")) {
			return 0;
		} else if (type.equals("flv")) {
			return 0;
		}
		// 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等),
		// 可以先用别的工具（mencoder）转换为avi(ffmpeg能解析的)格式.
		else if (type.equals("wmv9")) {
			return 1;
		} else if (type.equals("rm")) {
			return 1;
		} else if (type.equals("rmvb")) {
			return 1;
		}
		return 9;
	}

	private static boolean checkfile(String path) {
		File file = new File(path);
		if (!file.isFile()) {
			return false;
		}
		return true;
	}

	// 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等), 可以先用别的工具（mencoder）转换为avi(ffmpeg能解析的)格式.
	private static String processAVI(int type) {
		List<String> commend = new ArrayList<String>();
		commend.add("c:\\ffmpeg\\mencoder");
		commend.add(PATH);
		commend.add("-oac");
		commend.add("lavc");
		commend.add("-lavcopts");
		commend.add("acodec=mp3:abitrate=64");
		commend.add("-ovc");
		commend.add("xvid");
		commend.add("-xvidencopts");
		commend.add("bitrate=600");
		commend.add("-of");
		commend.add("avi");
		commend.add("-o");
		commend.add("c:\\ffmpeg\\output\\a.avi");
		try {
			ProcessBuilder builder = new ProcessBuilder();
			builder.command(commend);
			builder.start();
			return "c:\\ffmpeg\\output\\a.avi";
		} catch (Exception e) {
			e.printStackTrace();
			return null;
		}
	}

	// ffmpeg能解析的格式：（asx，asf，mpg，wmv，3gp，mp4，mov，avi，flv等）
	private static boolean processFLV(String oldfilepath) {

		if (!checkfile(PATH)) {
			System.out.println(oldfilepath + " is not file");
			return false;
		}

		// 文件命名
		Calendar c = Calendar.getInstance();
		String savename = String.valueOf(c.getTimeInMillis())
				+ Math.round(Math.random() * 100000);
		List<String> commend = new ArrayList<String>();
		commend.add("/tool/ffmpeg/ffmpeg");
		commend.add("-i");
		commend.add(oldfilepath);
		commend.add("-ab");
		commend.add("56");
		commend.add("-ar");
		commend.add("22050");
		commend.add("-qscale");
		commend.add("8");
		commend.add("-r");
		commend.add("15");
		commend.add("-s");
		commend.add("600x500");
		commend.add("f:\\迅雷下载\\a.flv");

		try {
			Runtime runtime = Runtime.getRuntime();
			Process proce = null;
			String cmd = "";
			String cut = "     /tool/ffmpeg/ffmpeg.exe   -i   "
					+ oldfilepath
					+ "   -y   -f   image2   -ss   8   -t   0.001   -s   600x500   f:\\迅雷下载\\"
					+ "a.jpg";
			String cutCmd = cmd + cut;
			proce = runtime.exec(cutCmd);
			ProcessBuilder builder = new ProcessBuilder(commend);
			builder.command(commend);
			builder.start();

			return true;
		} catch (Exception e) {
			e.printStackTrace();
			return false;
		}
	}
}